/// <summary>
/// Determines if the type associated with the first MetaObject is a subclass of the
/// type associated with the second MetaObject.
/// </summary>
internal static bool IsSubclassOf(DynamicMetaObject /*!*/ xType, DynamicMetaObject /*!*/ yType)
{
PythonType x = MetaPythonObject.GetPythonType(xType);
PythonType y = MetaPythonObject.GetPythonType(yType);
return(x.IsSubclassOf(y));
}
public static void warn(CodeContext context, object message, [DefaultParameterValue(null)] PythonType category, [DefaultParameterValue(1)] int stacklevel)
{
PythonContext pContext = PythonContext.GetContext(context);
List argv = pContext.GetSystemStateValue("argv") as List;
PythonDictionary dict = pContext.GetSystemStateValue("__dict__") as PythonDictionary;
if (PythonOps.IsInstance(message, PythonExceptions.Warning))
{
category = DynamicHelpers.GetPythonType(message);
}
if (category == null)
{
category = PythonExceptions.UserWarning;
}
if (!category.IsSubclassOf(PythonExceptions.Warning))
{
throw PythonOps.ValueError("category is not a subclass of Warning");
}
// default behavior without sys._getframe
PythonDictionary globals = Builtin.globals(context) as PythonDictionary;
int lineno = 1;
string module;
string filename;
if (globals != null && globals.ContainsKey("__name__"))
{
module = (string)globals.get("__name__");
}
else
{
module = "<string>";
}
filename = globals.get("__file__") as string;
if (filename == null || filename == "")
{
if (module == "__main__")
{
if (argv != null && argv.Count > 0)
{
filename = argv[0] as string;
}
else
{
// interpreter lacks sys.argv
filename = "__main__";
}
}
if (filename == null || filename == "")
{
filename = module;
}
}
PythonDictionary registry = (PythonDictionary)globals.setdefault("__warningregistry__", new PythonDictionary());
warn_explicit(context, message, category, filename, lineno, module, registry, globals);
}
private static array ArrayReconstructor(CodeContext context, [NotNull]PythonType cls, [NotNull]string typecode, int mformat_code, [NotNull]Bytes items) {
if (typecode.Length != 1)
throw PythonOps.TypeError("expected character, got {0}", PythonTypeOps.GetName(typecode));
if (!typecodes.Contains(typecode))
throw PythonOps.ValueError("bad typecode (must be b, B, u, h, H, i, I, l, L, q, Q, f or d)");
var actualTypeCode = MachineFormatToTypeCode(mformat_code, out bool isBigEndian, out string? encoding);
var arrayType = DynamicHelpers.GetPythonTypeFromType(typeof(array));
if (!cls.IsSubclassOf(arrayType)) {
throw PythonOps.TypeError($"{cls} is not a subtype of array.array");
}
array res;
if (cls == arrayType) {
res = new array(actualTypeCode);
} else if (cls.CreateInstance(context, actualTypeCode) is array arr) {
res = arr;
} else {
throw PythonOps.TypeError($"{cls} is not a subtype of array.array");
}
if (encoding == null) {
res.frombytes(items);
if (isBigEndian) res.byteswap();
} else {
res.fromunicode(context, StringOps.RawDecode(context, items, encoding, null));
}
return res;
private static bool ShouldInvokeInit(PythonType cls, PythonType newObjectType, int argCnt)
{
// don't run __init__ if it's not a subclass of ourselves,
// or if this is the user doing type(x), or if it's a standard
// .NET type which doesn't have an __init__ method (this is a perf optimization)
return((!cls.IsSystemType || cls.IsPythonType) &&
newObjectType.IsSubclassOf(cls) &&
(cls != TypeCache.PythonType || argCnt > 1));
}
public static void warn(CodeContext context, object message, PythonType category = null, int stacklevel = 1)
{
PythonContext pContext = context.LanguageContext;
List argv = pContext.GetSystemStateValue("argv") as List;
if (PythonOps.IsInstance(message, PythonExceptions.Warning))
{
category = DynamicHelpers.GetPythonType(message);
}
if (category == null)
{
category = PythonExceptions.UserWarning;
}
if (!category.IsSubclassOf(PythonExceptions.Warning))
{
throw PythonOps.ValueError("category is not a subclass of Warning");
}
TraceBackFrame caller = null;
PythonDictionary globals;
int lineno;
if (context.LanguageContext.PythonOptions.Frames)
{
try {
caller = SysModule._getframeImpl(context, stacklevel - 1);
} catch (ValueErrorException) { }
}
if (caller == null)
{
globals = Builtin.globals(context) as PythonDictionary;
lineno = 1;
}
else
{
globals = caller.f_globals;
lineno = (int)caller.f_lineno;
}
string module;
string filename;
if (globals != null && globals.ContainsKey("__name__"))
{
module = (string)globals.get("__name__");
}
else
{
module = "<string>";
}
filename = globals.get("__file__") as string;
if (filename == null || filename == "")
{
if (module == "__main__")
{
if (argv != null && argv.Count > 0)
{
filename = argv[0] as string;
}
else
{
// interpreter lacks sys.argv
filename = "__main__";
}
}
if (filename == null || filename == "")
{
filename = module;
}
}
PythonDictionary registry = (PythonDictionary)globals.setdefault("__warningregistry__", new PythonDictionary());
warn_explicit(context, message, category, filename, lineno, module, registry, globals);
}
public static void warn_explicit(CodeContext context, object message, PythonType category, string filename, int lineno, string module = null, PythonDictionary registry = null, object module_globals = null)
{
PythonContext pContext = context.LanguageContext;
PythonDictionary fields = (PythonDictionary)pContext.GetModuleState(_keyFields);
object warnings = pContext.GetWarningsModule();
PythonExceptions.BaseException msg;
string text; // message text
if (string.IsNullOrEmpty(module))
{
module = (filename == null || filename == "") ? "<unknown>" : filename;
if (module.EndsWith(".py"))
{
module = module.Substring(0, module.Length - 3);
}
}
if (registry == null)
{
registry = new PythonDictionary();
}
if (PythonOps.IsInstance(message, PythonExceptions.Warning))
{
msg = (PythonExceptions.BaseException)message;
text = msg.ToString();
category = DynamicHelpers.GetPythonType(msg);
}
else
{
text = message.ToString();
msg = PythonExceptions.CreatePythonThrowable(category, message.ToString());
}
PythonTuple key = PythonTuple.MakeTuple(text, category, lineno);
if (registry.ContainsKey(key))
{
return;
}
string action = Converter.ConvertToString(fields[_keyDefaultAction]);
PythonTuple last_filter = null;
bool loop_break = false;
List filters = (List)fields[_keyFilters];
if (warnings != null)
{
filters = PythonOps.GetBoundAttr(context, warnings, "filters") as List;
if (filters == null)
{
throw PythonOps.ValueError("_warnings.filters must be a list");
}
}
foreach (PythonTuple filter in filters)
{
last_filter = filter;
action = (string)filter._data[0];
PythonRegex.RE_Pattern fMsg = (PythonRegex.RE_Pattern)filter._data[1];
PythonType fCat = (PythonType)filter._data[2];
PythonRegex.RE_Pattern fMod = (PythonRegex.RE_Pattern)filter._data[3];
int fLno;
if (filter._data[4] is int)
{
fLno = (int)filter._data[4];
}
else
{
fLno = (Extensible <int>)filter._data[4];
}
if ((fMsg == null || fMsg.match(text) != null) &&
category.IsSubclassOf(fCat) &&
(fMod == null || fMod.match(module) != null) &&
(fLno == 0 || fLno == lineno))
{
loop_break = true;
break;
}
}
if (!loop_break)
{
action = Converter.ConvertToString(fields[_keyDefaultAction]);
}
switch (action)
{
case "ignore":
registry.Add(key, 1);
return;
case "error":
throw msg.GetClrException();
case "once":
registry.Add(key, 1);
PythonTuple onceKey = PythonTuple.MakeTuple(text, category);
PythonDictionary once_reg = (PythonDictionary)fields[_keyOnceRegistry];
if (once_reg.ContainsKey(onceKey))
{
return;
}
once_reg.Add(key, 1);
break;
case "always":
break;
case "module":
registry.Add(key, 1);
PythonTuple altKey = PythonTuple.MakeTuple(text, category, 0);
if (registry.ContainsKey(altKey))
{
return;
}
registry.Add(altKey, 1);
break;
case "default":
registry.Add(key, 1);
break;
default:
throw PythonOps.RuntimeError("Unrecognized action ({0}) in warnings.filters:\n {1}", action, last_filter);
}
if (warnings != null)
{
object show_fxn = PythonOps.GetBoundAttr(context, warnings, "showwarning");
if (show_fxn != null)
{
PythonCalls.Call(
context,
show_fxn,
msg, category, filename, lineno, null, null);
}
else
{
showwarning(context, msg, category, filename, lineno, null, null);
}
}
else
{
showwarning(context, msg, category, filename, lineno, null, null);
}
}